public class Test47 {
    //一张0.1mm厚的纸这多少次 能有珠穆朗玛峰高（8844430mm）
    public static void main(String[] args) {
        int count = 0;
        double paper = 0.1;
        double height = 8844430;
        while(paper <= height){
            paper = paper * 2;
            count++;
        }
        System.out.println(count);
    }
}
